Impulse-transmitter.



.B. .E. CLEMENT.

mPuLsB TnAnsu1TTBn. APPLICATION I'll-3D 170.88, 1000.

1,037,172. Patehted-Au ..27, 1912.

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Specification or 1mm Patent.

' Patented Aug. 27, 1 912.

I Application filed August23, 190a. Serial-No. 831,807.

To all whom it may concern:

Be it known that .I, Enwaso E. Cnnmim', a citizen of the United States, residm at Washington, in the District of Colum 1a, have invented certain new and useful Im provements in Impulse-Transmitters, of whicht-he following is a specificat on, ref erence being had'therein to the accompanyini drawing. v

y invention relates to impulse transmitters and especially to the type used for the purpose of sending impulses over a line for signaling urposes or t-o effect switches'at a' central 0 0c in automatic and semi-aut0- matic telephone systems.

This application contains much mat-teroriginally disclosed in a copendingalppli cation filed by me April 15, 1905, and earing the Serial Number 255,831.

The obj'ectof the present invention is to provide a conveniently operated. instrument. which will be certain in operation and which will. have .itsparts "minimized. in number.

Other obtacts of the invention .will 'be a '.f parent to t ose skilled in the art'whe'n t e following description .is read in connection with the drawings which form,,a partof-this application and in which-Fi re'"1 is a diagram of a subscribers telep onestation equipped with the invention. Fig. 2 is u' detail view. Fig. 3 is a plan view ofa modification..-.-.

Referring to Fig. 1, I have therein shown the usual transmitter T, receiver R,-hook H, ringerQ, .andcondenserC. In addi tion to these, the a paratus consists of'the' fol1owing:-a main-s iaft d." carries the gear wheel d, which may conveniently beone long. ear. The teeth of 'this'whe'el are engc b the teeth or on the push button rac sd, ',d',(l',d,d d,d,d'andd.y These buttons are provided with stops of, as, m", w, m, w w, w, m and w,'set a successivelygreater distances in relation to the push buttons. The; first rack "when pushed. in is limited in its movement by the etc of,- thesecond rack d, is allowed to pass artherin' but'isalso limitedfin its movement by the stop a. The succeeding racks d etc., have progressively increasing trave to their stopping points 'and-. all oi the-racks lwhen depressed cause theirlteethwto. engage "the teeth of th'e'iwhe'el" d causing the latter and its connected shaft (1 to turn. When the first push button is thus depressed it causes complete 7 revolution.

- description.

on the stem an being fixed. These details can of course be varied almost indefinitely without departing theshaft to rotate but a short distance while the lastbutton causes it to make nearly a Onthe shaft" is mounted a number wheel d". whose "pawl xl engage's the wheel 11 When any button is:'.de'pressed and the shaftrotates this numberwheelis not affected, but when the shaft-is released "the number wheel turns with theshaft and the teeth engage its contact spring (1? which then makes-and breaks with the-contact 'springd". It should be observed that "the number wheel 'alwa s turns in the same direction, and thatthe d13- tance'each buttonand its connected rack may bepushed. inis measured in multiples thewh'eel one toothixthe' rack at two teeth,

of the-wheel. In s ort, the rack d moves .thewheel one tooth, the. rack d. two teeth,

and so on. 'The same "result mightbe attained by providing. the-rack d-withyone tooth, the rack d with two teeth, the rack 07 with'three teeth, etc., the stops w, w, w. ctc., being then all arranged in a strai ht sirediposition indi erently,. l

. It'is thoughtp'the operation of. the device will'be' suiiiciently clear from ;the foregoing Here the shaft d is mounted ins frame f-secured at thefront to .the telephone box or -operator-s' table f... .The "figure, is a transverse section, and the s rings d and d? areshown; mounted 0n.-t e back of the mounted. to slide 1n a long bearing in the frame. The am m in thls case is mounted moves with it instead of from the scope of theinvention, which comprises-as its broadest feature the idea of aving a singl pair of contacts made and taken by a wieel which always moves in the same direction,-impelled b a. spring S which is wound up by. setting evices manustruc'tion to limit tlielmovement in setting. ,Ifdes1re particularly'tostate that while I have shown thesprings d" and d? as normally to ether "andcontrolling a 'metallic -oircuit,":t ey may be normally open and in-- eluded-many circuit.v

ally; controlled and acting against an 'ob-- variable signals comprising a common shaft or spindlewith a motor sprin and control-- a toothe wheel and. a pair 'of contact' springs acted upon therebywhen turning, means for causing said wheel to turn alwavs.

in the same direction, drivin means for a wheel, setting means adapte when actuated to store upenergy for driving and stopspositioned at intervals on the setting means in order of numerical progression, and each adapted according to its position to determine the distance through which the wheel will turn, substantially as described 3. An nn ulse transmitter comprising a driven niem r having an unchanging direction of progression a driving member'the're for, setting means ior the drain member, a fixed stop for the-setting means etermining an absolute zero position thereof, and movable selective stop mechanism carried by the setting means and cooperating withithe fixed stop, wherebythe actuation ofthe setting means will store up, energy for driving anu simultaneously determine the extent of movement of the driven member. v

4. An impulsetransmitter comprisin a single num r wheel, -a shaft" and a .sp 3 therefor, and a plurality-ofselective'means for turning the shaft through. diiferent angular'distances, substantially as described. An impulse transmitter com rising a toothed wheel, contact springs for e wheel,

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and a set of push buttons adapted to turn the wheel throu 11, different angular distances, substantia ly as-dcscribed.

tirAn impulse transmitter comprising a single number wheel, a common shaft and a spring therefor, a plurality of sclcctive devlcesfor turning tie shaft through different,clistances, and sin-operative connection between the shaft and the number wheel.

7..An impulse transmitter com rising a single number wheel, a plnralit o selective devices, a shaft common to al of said do vices and adapted to be turned thereby through difi'ere'nt distances, a spring for returning said shaft to normal and a connectionbetween the shaft and the number wheel which'operates in the retrograde movement of thee aft;

8. An impulse transmitter com rising a single number wheel, a pluralit 0 selective devices, a shaft common to al of said devices" and adapted to be turned thereby through different distances, means for-re turning said shaft to normal, an operative connection I between the shaft j and number wheel, and 'means to prevent the operation of thenumber wheel in the operation of said devices.- a 0. A variable signal'impulse transmitter comprising a common shaft or spindle carrying a motor sp'rin a toothed signal wheel mounted-on said s aft, actuatin .racks each ferent number ofimpulses.

,In testimonv whereof I-affix my signature in presence-o two witnesses.

'EDWARD E.- CLEMENT. Witnesses:

Rm, J os.,-L. Wmeirr,

the commissioner 6: Patents, 

